EDIT by Madcran
You do not need to request invites anymore, Boxee has opened up for Mac, Linux, and AppleTV users. Windows users are still in a closed Alpha. A Boxee account is still needed to log in, that is their requirement for using the software as it is a community based piece of software. Have fun all!
If anyone needs an invite for Boxee, we would be happy to supply one. Simply send a PM to ‘atvflash’ or ‘madcran’ with your email address, and an invite will be sent to you.